Rewrite the rational expression as an equivalent rational expression with the given denominator.
-$\frac { 4 } { 2 x } = \frac { } { 10 x ^ { 2 } }$
A) $\frac { 4 x ^ { 2 } } { 10 x ^ { 2 } }$
B) $\frac { 4 } { 10 x ^ { 2 } }$
C) $\frac { 20 x } { 10 x ^ { 2 } }$
D) $\frac { 20 } { 10 x ^ { 2 } }$

Question

Quizplus · Accepted Answer

To rewrite $\frac{4}{2x}$ with a denominator of $10x^2$, multiply both the numerator and denominator of the original fraction by $5x$ to get $\frac{20x}{10x^2}$.

Rewrite the Rational Expression as an Equivalent Rational Expression with the Given